The front brakes on my bakkie started binding, so i replaced the master cylinder, i then saw that i don't have that back check valve between the manifold and the brake booster, so i fitted one, then after a few days my bakkie started making a hissing sound in the cab when I applied the brakes, and the idling goes down so much that she actually cuts out, so i reckon it can only be the brake booster that has a diaphragm that's torn, now my question is,
![Beg :beg:](./images/smilies/beg.gif)
Regards